文献类型：期刊文献

英文题名：Novel fluorene-based chemodosimeters for mercury and methylmercury species in aqueous media

作者：Ding, Li;Zou, Qi;Su, Jianhua[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2012

卷号：168

起止页码：185

外文期刊名：SENSORS AND ACTUATORS B-CHEMICAL

收录：;EI(收录号：20122215079471);WOS:【SCI-EXPANDED(收录号:WOS:000305379700026)】；

语种：英文

外文关键词：Fluorene; Thiourea; Chemodosimeter; Mercury(II); Methylmercury(I)

摘要：Four novel compounds 1a-4a consisting of fluorene as signaling unit and thiourea as responding unit were developed as fluorescent chemodosimeters for mercury and methylmercury species. Upon treatment with Hg2+ and CH3Hg+, the fluorescence of 3a is effectively quenched, whereas 1a, 2a and 4a show evident fluorescent color variations under illumination with 365 nm light: yellow to pale blue, yellow to bright blue, light red to orange yellow, respectively. They all exhibit specific sensitivity and selectivity for Hg2+ and CH3Hg+ over other examined metal ions in CH3CN-H2O solution at room temperature. (C) 2012 Elsevier B.V. All rights reserved.